CA903884A - Apparatus for sensing the presence of an object in an area - Google Patents

Apparatus for sensing the presence of an object in an area

Info

Publication number
CA903884A
CA903884A CA903884A CA903884DA CA903884A CA 903884 A CA903884 A CA 903884A CA 903884 A CA903884 A CA 903884A CA 903884D A CA903884D A CA 903884DA CA 903884 A CA903884 A CA 903884A
Authority
CA
Canada
Prior art keywords
sensing
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA903884A
Inventor
R. Tothill Gordon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRO DYNAMICS AND TELECOM Ltd
Original Assignee
ELECTRO DYNAMICS AND TELECOM Ltd
Publication date
Application granted granted Critical
Publication of CA903884A publication Critical patent/CA903884A/en
Expired legal-status Critical Current

Links

CA903884A Apparatus for sensing the presence of an object in an area Expired CA903884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA903884T

Publications (1)

Publication Number Publication Date
CA903884A true CA903884A (en) 1972-06-27

Family

ID=36411740

Family Applications (1)

Application Number Title Priority Date Filing Date
CA903884A Expired CA903884A (en) Apparatus for sensing the presence of an object in an area

Country Status (1)

Country Link
CA (1) CA903884A (en)

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