Mechanical drawing
By: by Oscar E. Perrigo.
Series: Machinery's reference series,; no. 85-88
Publisher: The Industrial press
Published: 1912
Place of publication: New York city
Language: eng
Subjects: Mechanical drawing
Table of contents: title: I. Instruments; geometrical problems.; title: II. Orthographic projection; lettering.; title: III. Machine details.; title: IV. Cam design; drafting-room methods and systems.