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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5346369 | Bilge pump actuated by wave motion A pump actuated by a reciprocal oscillating motion, the pump including a casing member enclosing an elongated substantially cylindrical chamber therewithin, a pair of flexible bellows disposed at the opposing distal ends of the chamber, each of the bellow... | 09/13/1994 |
| 5044295 | Apparatus for removing bilge water out of a boat An apparatus for removing water out of a boat which comprises: a swingable member which is swingable according to a rolling and/or pitching motion of the boat; and water discharging pump device which is operated by the swinging motion of the swingable mem... | 09/03/1991 |
| 4953490 | Wave operated boat pump This invention relates to a device that uses the rocking or pitching motion of a boat caused by wave action to operate a pump in said boat. Said device functions by being so connected as to use the relative motion between said rocking or pitching boat and... | 09/04/1990 |
| 4340006 | Semi-automatic bailer plug A semi-automatic boiler plug assembly having a mounting plate with a central hole aligned with a bailer hole on a boat transom is described. Attached to the mounting plate is a cylinder and piston therein made of a resilient material which seats in the ce... | 07/20/1982 |
| 3937168 | Bilge pump A wave-actuated bilge pump for pumping foul bilge gases from a boat. The pump includes a generally inverted U-shaped section of hollow tubing with generally downwardly directed legs having open ends. One of the ends is positioned to receive bilge gases fr... | 02/10/1976 |
