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US Patent: 2,077,828
Ruler
Patentee:
Briney S. Dombrowski - Seneca Falls, NY

USPTO Classifications:
33/494, D10/71

Tool Categories:
rules

Assignees:
Westcott Rule Company - Seneca Falls, NY

Manufacturer:
Unknown

Witnesses:
none listed

Patent Dates:
Applied: Mar. 19, 1935
Granted: Apr. 20, 1937

Patent Pictures:
B. S. Dombrowski patent April 20, 1937
USPTO pdf tiff
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Description:
The patent describes ruler markings using heavy and light lines, and distinctive blocks to facilitate distinguishing fractions of inch -- 1/4 inch is mentioned.

The basic ruler includes a brass edge insert as described in patent no. 370,668.

A known example includes the patent number.

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