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US Patent: 21,281
Gas Regulator
Patentee:
W. G. Sterling - Bridgeport, CT

USPTO Classifications:
137/454.2, 137/505.4

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Leonard Sterling
M. A. Hussey

Patent Dates:
Granted: Aug. 24, 1858

Patent Pictures:
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