cover image: The Gazette of Pakistan  Karachi  Friday  October 3  1952

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The Gazette of Pakistan Karachi Friday October 3 1952

1952

S. 1033 The Gazatte of Pakistan PUBLISHED BY AUTHORITY KARACHI FRIDAY OCTOBER 3 1952 PART IV Notifications and Notices issued by the Patent Office THE PATENT OFFICE PATENTS AND DESIGNS Karachi the 3rd October 1952 Applications for Patents 'The dates shown in brackets are the dates claimed under section 78-A of the Act. [...] in opposing the grant of Patents on any of the applcations referred to below may at any time within four months of the date of this Gazette of Pakistan give notice at the Patent Office in the prescribed Form No. [...] Requisitions for the supply of printed specifications should be accopanied by the numbers of the specifications. [...] Preparation of chemical compounds of the general formula B-C ( -= Z) -CH -CH2-N X and their acid salts (B = arylmethyl radical Z = oxygen hdroxyl and hydrogen or acyloxy and hydrogen and NX = secondary amine residue) by reacting together formaldehyde a ketone of the general formula B-C (= O)-CH3 and a secondary amine of the formula HNto obtain amino ketone of the general formula where Z [...] Characterised in that a brake applies to the carrier a braking force resisting the uncoiling of the strip and the brake is automatically adjustable under the action of centrifugal force to vary the braking force inversely as the speed of rotation of the carrier about the conductor varies.
government politics public policy
Pages
2
Published in
India
SARF Document ID
sarf.100008
Segment Pages Author Actions
The Gazette of Pakistan Karachi Friday October 3 1952
63-64 unknown view