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US Patent: 3,494,039
Map Scaling Device
Patentee:
Irwin C. Porter (exact or similar names) - Quinter, KS

USPTO Classifications:
33/773, 33/782

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: Sep. 13, 1968
Granted: Feb. 10, 1970

Patent Pictures:
USPTO (New site tip)
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Description:
Harris, Kiech, Russell & Kern - patent attorneys

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