nPaterzt A NEW TYPE OF HOLLOW GRATE-BAR. A NEW TYPE OF HOLLOW GRATE-BAR. ODDITIES IN INVENTION. INCANDESCENT-LAMP SUPPORT. WINDOW CLEANER AND DRIER. NEW TYPE OF FIRE EXTINGUISHER. TROLLEY-POLE GUIDE. TIRE-INFLATING DEVICE. Brief Notes Concerning Patents., scientific american, 1903-10-31
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