[Letters and patent relating to the blind opertor and locks, 1896-1902]
Contributors: Rapid Manufacturing & Introduction Company
Published: 1896
Place of publication: 1896-1902
Language: eng
Number of pages: 12
Subjects: Blinds; Patents; Rapid Manufacturing & Introduction Company
Other titles: Blind operators and locks.
Notes: A compilation of material relating to the "blind" operator and lock designed by Albert Frances Barney for use in opening window shutters.

Title supplied by cataloger.

Includes unpublished letters from the Rapid Manufacturing & Introduction Company to A.F. Barney, an original U.S. patent, and an original drawing of the shutter.