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| All Patents in class 33/785 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,339,031 | Jan. 11, 1944 | I.D. Rosenberg | Micrometer | micrometers | |
| 2,775,818 | Jan. 01, 1957 | F. Meyer, Jr. | Fluid Gage Apparatus | pneumatic measuring gauges | |
| 2,991,558 | Jul. 11, 1961 | P. Cherkas | Air Gage Cartridge | pneumatic measuring gauges | |