Patent DE516256C successfully refreshed from Google Patents.
DE516256C
Expired / Lapsed
DE
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Process for the production of evacuated glass vessels with a spring-mounted switch lever in the vessel wall
Assignee: Siemens Schuckertwerke AG
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Filing: —
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Granted: 1931-01-21
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Expires: 1948-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 17:30
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/6664
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