USA

Patent:US1977498

Patent:	US 1977498
Title:	Flow Meter
Date:	16.10.1934
Place:
Country:	USA
Person:	E. Staegemann
Company:
Internal Links:
Keywords:
Link to the patent office: (without guarantee)	US1977498 (espacenet), US1977498 (uspto)

Aus der Patentschrift US1977498

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