Boilers user's guide

Boilers user's guide

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specially written for the factory owner and his engineer Claudius P. Jenkyns. many forms of this ... When such an impulse is sent out by the master controller, it passes via a small bore tube to a relay such as Plate 13. The function of this relay isanbsp;...

Title:Boilers user's guide
Author:Claudius P. Jenkyns
Publisher: - 1945


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