Inventor
LEHRKE KENNETH EUGENE
US4 patents
Patents
4 patentsUS6899530B2May 31, 2005
Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder
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US6164560ADec 26, 2000
Lawn applicator module and control system therefor
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US7090474B2Aug 15, 2006
Diaphragm pump with overfill limiter
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US6568559B2May 27, 2003
Termite control system with multi-fluid proportion metering and batch signal metering
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