EXPIRING PATENTS.

EXPIRING PATENTS.

DECEMBER 31, 1889.

[These patents are now free to be used by anyone. The devices are public property. A full copy of any patent will be mailed for fifteen cents by F. B. Brock Patent Attorney, 639 F street, Washington, D. C.J

E. A.. Day, elastic clasp for elastic nozzles.

H. Frank, metallurgic gas furnace valve.

T. F. Rowland, filling gas retort chargers.

J. Armstrong, feed water heater and niter.

Waters & Bellamy, composition pavement.

J. North, steam pump.

J. V. Jepson, tube cutter.

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