US1920684A - X-ray device - Google Patents

X-ray device Download PDF

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Publication number
US1920684A
US1920684A US488592A US48859230A US1920684A US 1920684 A US1920684 A US 1920684A US 488592 A US488592 A US 488592A US 48859230 A US48859230 A US 48859230A US 1920684 A US1920684 A US 1920684A
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US
United States
Prior art keywords
ray device
ray
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 - Lifetime
Application number
US488592A
Inventor
Ehrke Louis Frederick
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Priority to US488592A priority Critical patent/US1920684A/en
Application granted granted Critical
Publication of US1920684A publication Critical patent/US1920684A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/32—Tubes wherein the X-rays are produced at or near the end of the tube or a part thereof which tube or part has a small cross-section to facilitate introduction into a small hole or cavity
US488592A 1930-10-14 1930-10-14 X-ray device Expired - Lifetime US1920684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US488592A US1920684A (en) 1930-10-14 1930-10-14 X-ray device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US488592A US1920684A (en) 1930-10-14 1930-10-14 X-ray device

Publications (1)

Publication Number Publication Date
US1920684A true US1920684A (en) 1933-08-01

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ID=23940306

Family Applications (1)

Application Number Title Priority Date Filing Date
US488592A Expired - Lifetime US1920684A (en) 1930-10-14 1930-10-14 X-ray device

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US (1) US1920684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030364A2 (en) * 1979-12-06 1981-06-17 Siemens Aktiengesellschaft Dental X ray diagnostic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030364A2 (en) * 1979-12-06 1981-06-17 Siemens Aktiengesellschaft Dental X ray diagnostic apparatus
EP0030364B1 (en) * 1979-12-06 1985-03-20 Siemens Aktiengesellschaft Dental x ray diagnostic apparatus

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