Title: Adjustable grid line device

Abstract: This device consists primarily of parallel spaced apart bars which through brackets, bolt, spring and wingnut fastenings will adjust to adapt to a painting canvas, the parallel members having equally spaced apart slot means in which will be received thread so as to form grid lines for the purpose of copying, enlarging or decreasing photographs, paintings, pictures, plans and the like from one area to another.

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Other info:

Inventors: Sr., Walter V. (Bronx, NY, US)

Application Number: 551100
Filing Date: 1975-02-20
Publication_date: 1976-02-24
Assignee:
Primary Class(es): 33/1K 33/452
Other Classes:
US Patent Ref:

353919	Dec, 1886	Charman	33/1.
1183977	May, 1916	Hoefle	355/126.
1509703	Sep, 1924	Bourgeois	33/95.
1622229	Mar, 1927	Ormiston	33/1.
1821252	Sep, 1931	Woods	33/277.
2370741	Mar, 1945	McDonnell	33/103.
2451207	Oct, 1948	Ferguson	33/DIG.

Other Refs:
Primary Examiner: Martin, Jr., William D.
Assistant Examiner:
Attorney: Bridger; Homer J.