An Act to suspend certain import duties on lead
PL 82-257 (H.R.4948), enacted 02/11/1952

PUBLIC LAW 257-FEB. 11, 1952 
[66 S T A T . 
Rules and regu-
lations; delega-
tion of power. 
rial information with respect thereto, or whoever, in violation of the 
provisions of section 4 hereof, shall file or cause or authorize to be filed 
in any foreign country an application for patent or for the registra-
tion of a utility model, industrial design, or model in respect of any 
invention made in the United States, shall, upon conviction, be fined 
not more than $10,000 or imprisoned for not more than two years, or 
both. 
Nonappiicability. 
SEC. 7. The prohibitions and penalties of this Act shall not apply to 
any officer or agent of the United States acting within the scope of 
his authority, nor to any person acting upon his written instructions 
or permission. 
SEC. 8. The Atomic Energy Commission, the Secretary of a defense 
department, the chief officer of any other department or agency of the 
Government designated by the President as a defense agency of the 
United States, and the Secretary of Commerce, may separately issue 
rules and regulations to enable the respective department or agency to 
carry out the provisions of this Act, and may delegate any power 
conferred by this Act. 
SEC. 9. If any provision of this Act or of any section hereof shall 
be held invalid, the remainder of the Act shall not be affected thereby. 
SEC. 10. The Acts of Congress approved October 6, 1917 (ch. 95, 
40 Stat. 394) ; July 1,1940 (ch. 501,54 Stat. 710) ; August 21,1941 (ch. 
393, 55 Stat. 657) ; and June 16, 1942 (ch. 415, 56 Stat. 370) (U. S. C , 
title 35, sees. 42 and 42a to 42f), are repealed, but such repeal shall 
not affect any rights or liabilities existing on the date of approval of 
this Act. An order of secrecy issued imder the repealed Acts, and in 
effect on the date of the approval of this Act, shall be considered an 
order issued pursuant to this Act. 
A claim arising under the repealed 
Acts and unsettled as of the effective date of this Act, may be presented 
and determined pursuant to the provisions of this Act. 
SEC. 11. Nothing in this Act shall be construed to alter, amend, 
revoke, repeal, or otherwise affect the provisions of the Atomic Energy 
Act of 1946 (60 Stat. 755), as amended. 
SEC. 12. This Act may be cited as the "Invention Secrecy Act of 
1951". 
Approved February 1, 1952. 
Separability. 
Repeals. 
• 42 use 1801 
note. 
Short Utle. 
February 11, 1952 
[H.R.4948] 
Public Law 257 
CHAPTER 17 
AN ACT 
To suspend certain import duties on lead. 
Lead. 
Suspension of 
duties. 
46 Stat. 628. 
19 u s e 100 1, 
pars. 391, 392. 
64 Stat. A454. 
50 u s e app. 
note prec. 1. 
Revocation. 
Be it enacted hy the Senate and House of Representatives 
of the 
United States of America in Congress assembled^ That the import 
duties imposed under paragraphs 391 and 392 of the Tariff Act of 
1930, as amended, on lead-bearing ores, flue dust, and mattes of all 
kinds, lead bullion or base bullion, lead in pigs and bars, lead dross, 
reclaimed lead, scrap lead, antimonial lead, and antimonial scrap lead 
shall not apply with respect to imports entered for consumption or 
Avithdrawn from warehouse for consumption during the period begin-
ning with the day following the date of the enactment of this Act and 
ending with the close of March 31, 1953, or the termination of the 
national emergency proclaimed by the President on December 16, 
1950, whichever is earlier: Provided^ That when, for any one calendar 
month during such period, the average market price of common lead 
for that month, in standard shapes and sizes, delivered at New York, 
has been below 18 cents per pound, the Tariff Commission, within 
fifteen days after the conclusion of such calendar month, shall so 
66 S T A T . ] 
PUBLIC LAW 259-FEB. 12, 1952 
advise the President, and the President shall, by proclamation, not 
later than twenty days after he has been so advised by the Tariff 
Commission, revoke such suspension of the duties imposed under 
paragraphs ^ 1 and 392 of the Tariff Act of 1930, such revocation to 
be effective with respect to articles entered for consumption or with-
drawn from w^arehouse for consumption after tlie date of such 
proclamation. 
In determining the average market price of common lead for each 
calendar month, the Tariff Commission is hereby authorized to base 
its findings upon the average monthly price of common lead, in 
standard shapes and sizes, delivered at New York, reported by the 
Engineering and Mining Journal's "Metal and Mineral Markets". 
Approved February 11, 1952. 
Market price. 
Public Law 258 
CHAPTER 18 
AN ACT 
To pi-ovide for the temporary free importation of zinc. 
February 11, 1952 
[H.R.54483 
Be it enacted hy the Senate and House of Re^yrenentativeH of the 
Ignited States of Amet'ica in Congress assetiiMed, That the import 
duties on zinc-bearing ores imposed under paragraph 393 of title I 
of the Tariff Act of 1930, as amended, and on zinc in blocks, pigs, and 
slabs imposed under paragraph 394 of such title of such Act shall be 
suspended with respect to imports entered for consumption or with-
drawn from warehouse for consumption during the period beginning 
with the day following the date of the enactment of this Act and 
ending with the close of March 31, 1953, or the termination of the 
national emergency proclaimed by the President on December 16, 
1950, whichever is earlier: Provided, That when, for any one calendar 
month during such period, the average market price of slab zinc 
(Prime Western, f. o. b. East St. Louis) for that month has been 
below 18 cents per pound, the Tariff Commission, within fifteen days 
after the conclusion of such calendar month, shall so advise the 
President, and the President shall, by proclamation, not later than 
twenty days after he has been so advised by the Tariff Commission, 
revoke the suspension of duties made by this Act, such revocation to 
be effective with respect to articles entered for consumption or with-
drawn from warehouse for consumption after the date of such 
proclamation. 
In determining the average market price of slab zinc for each 
calendar month, the Tariff Commission is hereby authorized to base 
its findings upon the aA^erage monthly price of slab zinc (Prime 
Western, f. o. b. East St. Louis) reported by the Engineering and 
Mining Journal's "Metal and Mineral Markets". 
Approved February 11, 1952. 
Zinc. 
Suspension o f 
duties. 
46 Stat. 628. 
19 u s e 
100 1, 
pars. 393, 394. 
64 Stat. A454. 
50 u s e a p p . , 
note prec. 1. 
Revocation. 
Market price. 
Public Law 259 
CHAPTER 19 
AN ACT 
Authorizing the acquisition by the Secretary of the Interior of the Gila Pueblo, 
in Gila County, Arizona, for archeological laboratory and storage purposes, 
and for other purposes. 
Be it enacted hy the Senate and House of Representatives 
of the 
United States of America in Congress assembled, That the Secretary 
of the Interior is authorized to acquire for archeological laboratory 
February 12,1952 
[S. 2169] 
G i l a P u e b l o , 
Ariz. 
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