ph electrodes
First Claim
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1. A PH ELECTRODE ASSEMBLY COMPRISING A HYPODERMIC NEEDLE HAVING AN AXIAL BORE AND A POINTED END, A GLASS PH ELECTRODE HAVING A TUBE PORTION LOCATED WITHIN SAID BORE AND TERMINATING THEREIN ADJACENT SAID NEEDLE END, AND AN ELONGATED WINDOW IN THE WALL OF SAID NEEDLE EXTENDING FROM ADJACENT SAID END PARALLEL TO THE AXIS OF SAID NEEDLE, AND PASSING FROM THE EXTERIOR OF SAID NEEDLE TO SAID BORE, A SECTION OF SAID TUBE PORTION WHICH IS IN REGISTER WITH SAID WINDOW BEING ARRANGED TO CONSTITUTE A PH-SENSITIVE MEMBRANE.
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1 Claim
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1. A PH ELECTRODE ASSEMBLY COMPRISING A HYPODERMIC NEEDLE HAVING AN AXIAL BORE AND A POINTED END, A GLASS PH ELECTRODE HAVING A TUBE PORTION LOCATED WITHIN SAID BORE AND TERMINATING THEREIN ADJACENT SAID NEEDLE END, AND AN ELONGATED WINDOW IN THE WALL OF SAID NEEDLE EXTENDING FROM ADJACENT SAID END PARALLEL TO THE AXIS OF SAID NEEDLE, AND PASSING FROM THE EXTERIOR OF SAID NEEDLE TO SAID BORE, A SECTION OF SAID TUBE PORTION WHICH IS IN REGISTER WITH SAID WINDOW BEING ARRANGED TO CONSTITUTE A PH-SENSITIVE MEMBRANE.
Specification