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Priority claimed from JP3818873Uexternal-prioritypatent/JPS49138768U/ja
Priority claimed from JP3818973Uexternal-prioritypatent/JPS49138769U/ja
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Publication of CH444574A4publicationCriticalpatent/CH444574A4/xx
G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
G04F5/063—Constructional details
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
H03H9/21—Crystal tuning forks
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Physics & Mathematics
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General Physics & Mathematics
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Chemical & Material Sciences
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Crystallography & Structural Chemistry
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Acoustics & Sound
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Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits
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