. Official proceedings . Duff Barrett Automatic Lowering Jack. Duff Governor Con-trolled, Self-LoweringJack Duff Ball BearingJournal Jack Duff High Speed,Ball BearingScrew Jack ^/le Duff Manufacturing Co. Est. 1883 PITTSBURGH. PA. 5ANCH OPFICES: ATLANTA - CHICAGO - HOUSTON - NEW >fOliK - ST. LOUIS - SAN FRANCISCO NORTON JACKS FOR CAR AND LOCOMOTIVE WORK In Various Sizes and CapacitiesA Thoroughly Proven Self-Lowering Type of Ball Bearing Jack JOURNAL JACKS Of Special Design—Built For Heavy Duty A. O. NORTON, Inc. 3d Ave. at 15th St. 440 Brookline Ave. Moline, 111. Boston 310 S. MichiganChic
. Official proceedings . Duff Barrett Automatic Lowering Jack. Duff Governor Con-trolled, Self-LoweringJack Duff Ball BearingJournal Jack Duff High Speed,Ball BearingScrew Jack ^/le Duff Manufacturing Co. Est. 1883 PITTSBURGH. PA. 5ANCH OPFICES: ATLANTA - CHICAGO - HOUSTON - NEW >fOliK - ST. LOUIS - SAN FRANCISCO NORTON JACKS FOR CAR AND LOCOMOTIVE WORK In Various Sizes and CapacitiesA Thoroughly Proven Self-Lowering Type of Ball Bearing Jack JOURNAL JACKS Of Special Design—Built For Heavy Duty A. O. NORTON, Inc. 3d Ave. at 15th St. 440 Brookline Ave. Moline, 111. Boston 310 S. MichiganChicago Cutting Out Complaints THERE is grief for everybody when equip-ment fails, due to loose or missing nuts. Workmanship is often blamed when it maynot be at fault. Even if the best mechanic applies a nutlock it wont stand the service test unless ithas the right principle behind it. Apply Grip Nuts to every bolted part andyou have the trouble stopped. Grip Nuts lock at every point on the bolt because of the lockworked in duringmanufacture. Grip Nuts are vi
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Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
