US3290775A - Hair and skin condition means - Google Patents

Hair and skin condition means Download PDF

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Publication number
US3290775A
US3290775A US445987A US44598765A US3290775A US 3290775 A US3290775 A US 3290775A US 445987 A US445987 A US 445987A US 44598765 A US44598765 A US 44598765A US 3290775 A US3290775 A US 3290775A
Authority
US
United States
Prior art keywords
hair
skin
cutter
cutter head
slots
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
US445987A
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English (en)
Inventor
Robert J Tolmie
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.)
Sperry Corp
Original Assignee
Sperry Rand Corp
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 Sperry Rand Corp filed Critical Sperry Rand Corp
Priority to US445987A priority Critical patent/US3290775A/en
Priority to GB13060/66A priority patent/GB1124394A/en
Priority to AT303166A priority patent/AT270442B/de
Priority to CH470666A priority patent/CH452390A/de
Priority to DE19661553802 priority patent/DE1553802A1/de
Priority to DK175366AA priority patent/DK123636B/da
Priority to SE4631/66A priority patent/SE309548B/xx
Priority to NO162467A priority patent/NO116453B/no
Priority to NL6604545A priority patent/NL6604545A/xx
Priority to BE679054D priority patent/BE679054A/xx
Application granted granted Critical
Publication of US3290775A publication Critical patent/US3290775A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/42—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards providing for straightening the hair to be cut, e.g. by means of bristles; providing for tensioning the skin, e.g. by means of rollers, ledges

Definitions

  • the present invention relates to electric ⁇ dry Shavers and more particularly to novel hair and skin conditioning means for electric dry shavers.
  • the cutter head which includes a stationary cutter and a movable cutter which is arranged in cutting cooperatio-n with the stationary cutter.
  • the cutter head comprises an elongated metal outer cutter having a skin engaging portion and within which outer cutter is mounted a reciprocatory inner cutter.
  • a plurality of transverse slots are provided in the skin engaging portion of the outer cutter for receiving hair which is positioned by the walls of the slots for cutting by the movable inner cutter.
  • hair bristles will be cut closer to the skin by the movable cutter as the thickness of those portions of the outer cutter in cutting engagement with the inner cutter are reduced. The thinner these portions are formed the closer the hair bristles will be cut to the skin. Conversely, however, irritating etlfects to the skin of the user are proportionally increased as these portions of the cutter head are made thinner. These irritating effects will vary in accordance with the characteristics of a persons skin and in some instances are attributable to the fact that portions of the users skin are combed int-o the hair reception slots and brought into contact with the inner cutter.
  • Another object is to provide novel hair and skin conditioning means and which means include novel means for guiding hair into the reception slots of a cutter head and which means is effective to substantially reduce irritations and provide for a comfortable and close shaving operation.
  • a further object is to provide novel hair and ⁇ skin lconditioning means for maintaining skin in flattened condition in advance of the cutter head and as the hair enters into the hair reception slots of the cutter head.
  • Another object is to provide a novel hair and skin conditioning member for guiding hair into a cutter head and which member includes novel mounting means whereby the conditioning member is disposed closely adjacent the cutter head.
  • a still further object is to'provide a novel skin conditioning member and mounting means therefor for aligning hair guiding slots in the conditioning member each with a hair reception slot in the cutter head whereby said guide slots provide extensions of the hair reception slots.
  • a skin conditioning member which includes an elongated frame member having resilient sidewalls clamped to a support member. portion of the frame member is provided for engaging and flattening the skin in advance of the cutter head and which bight portion is provided with a plurality of spaced transverse guiding slots. Means are provided for mounting the support member on the shaver casing and which means includes means for laterally adjusting the support member to align the guide slots with the hair reception slots of the shaver cutter head.
  • the configuration of the support member is such that the conditioning member is positioned closely adjacent the cutter head whereby skin is prevented from entering the cutter head and whereby the guide slots provided a continuation of the hair reception slots.
  • FIG. l is a perspective view of the upper portion of an electric dry shaver embodying the present invention.
  • FIG. 2 is an enlarged perspective view of the parts of the conditioning means and mounting means therefor;
  • FIG. 3 is an exploded perspective view of the parts of the conditioning rneans and mounting means therefor;
  • FIG. 4 is a fragmentary end cross sectional View of the conditioning means and cutter head unit shown on the right in FIG. l;
  • FIG. 5 is a View ⁇ similar to FIG. 4 and illustrates another embodiment of the present invention.
  • FIG. 6 is a sectional view taken on the lines 6-6 of FIG. 5;
  • FIG. 7 is ⁇ a fragmentary plan view of a corner portion of the cutter head and hair conditioning means of FIG. 5.
  • an upper portion of an electric dry shaver casing is generally indicated'by the reference numeral 10 in FIG. 1.
  • a cutter head receptacle 11 is provided between the upper portions, of spaced endwalls 12 and spaced sidewalls 13 (only one shown in FIG. 1) of casing 10.
  • a cutter head 15 of a usual type construction is disposed in receptacle 11 and which cutter head 15 includes a pair of spaced cutter head units 18 and 20.
  • Each cutter head unit 18 and 20, as shown with respect to cutter head. unit 20 includes an elongated inverted U-shaped outer cutter 21 having a bight portion 22 and spaced sidewalls 23 and 24.
  • An elongated movable inner cutter 25 (partly shown in FIGS. 2 and 4 )is disposed in outer cutter 21.
  • Inner cutter 25 is substantially rectangular in cross section (FIG. 4) and is maintained in cutting cooperation with outer cutter 21 against the underside of bight portion 22 in a known manner, as for example by a leaf spring 26 (partly shown in FIG. 4).
  • Leaf spring 26 is seated on a drive arm 27 of a motor (not shown) housed in a suitable manner in casing 10 and which drive arm 27 is adapted to move inne-r cutter 25 in the directions designated by the arrows A and B in FIG. 2 upon operation of the motor.
  • the top surface 28- of inner cutter 25 engages the underside of bight portion 22 of outer cutter 21 and is provided with a longitudinally extending channel portion 29 and which channel portion 29 is disposed within a longitudinally extending channel portion 30 provided in bight portion 22.
  • Bight portion 22 A bight i 3 is provided with a plurality of transverse hair reception slots 32 at each side of chanel 30.
  • Teeth 33 are provided in inner cutter 25 and which teeth 33 are adapted to cut hair that enters hair reception slots 32 when inner cutter 25 is reciprocated within outer cutter 21.
  • the structure thus far described represents conventional structure as found in known electric dry shavers. It has been found. that in use of electric dry Shavers of this general type that when the cutter head is transversed back and forth against a users skin during use that irritating sensations will often be caused if skin is drawn into the hair reception slots together with the hair bristles being cut. It is a feature of this invention to provide novel means for conditioning the skin and hair in advance of a cutter head of the type described whereby any irritating sensations are substantially reduced.
  • Conditioning means 35 and 36 are provided at each side of cutter head 15. Conditioning means 35 and 36 are identical and the description thereof will therefore be hereinafter directed to conditioning means 36.
  • Conditioning means 36 includes an elongated frame member 37 (FIGS. 3 and ⁇ 4) formed of a resilient metal material.
  • Frame member 37 includes a longitudinally extending top surface 38 from which depend a pair of longitudinally extending resilient legs 39 and 40.
  • Top surface 38 inclines downwardly (FIG. 3) from the upper edge 39a of leg 39 and merges with a rounded bulge portion 41 extending along the leading edge of top surface 38 and which bulge portion 41 extends downwardly into leg 40.
  • a plurality of hair guide slots 42 are formed in top surface 38 and which slots 42 extend transversely through bulge 41 and across surface 33 into the upper portion of leg 39 of frame 37.
  • Legs 39-40 of frame 37 (FIG. 4) are clamped to the opposite sides of an elongated support member 43.
  • Cutyout portions 44 are provided. in the spaced lower side edges of leg 39 (FIG. 3) and which cutout portions 44 are press-fitted into positioning lugs 45 provided on the rear surface (FIG. 3) of upright projections 46 formed at the opposite ends of support 43 to maintain frame 37 in a predetermined position ⁇ on support 43 and prevent lateral movement of frame 37 thereon.
  • Means are provided to mount conditioning means 36 on casing and which means include spacedy depending ear portions 47 formed at the opposite ends of support 43. Ears 47 project away at right angles from the spaced lower corners (FIG. 4) of support 43 and are each provided with an aperture 48.
  • Means 36 is mounted on casing 1i) by inserting support 43 into cutter head receptacle 11 and aligning apertures 48 in ears 47 with spaced apertures 49 (one shown in FIGS. 3 and 4) provided in sidewall 13 of casing 10.
  • Leg 39 of frame 37 is positioned by support 43 to extend parallel to the longitudinal axis of adjacent cutter head 20 closely adjacent to sidewall 24 -of outer cutter 21. Lugs 45 extend through cutout portions 44 in leg 39 and space leg 39 from sidewall 24 (FIG. 4).
  • Apertures 49 in sidewall of casing 10 are of lesser diameter than apertures 48 so that when apertures 48 of support 43 are aligned therewith, support 43 may be moved laterally relative to sidewall 13 of casing 10 to align guide slots 42 in frame 37 each with a hair reception slot 32 in the adjacent outer cutter 21 with guide slots 42 providing a continuation of hair reception slots 32.
  • suitable securing means such as an expandable rivet Sil (FIG. 4) is inserted in each pair of apertures 48-49 to secure support 43 in xed position to sidewall 13.
  • the leading edge 51 (FIG. 4) of the adjacent outer cutter 23 is preferably spaced slightly above top surface 38 of frame 37 as seen in FIG. 4, for purposes to be hereinafter explained.
  • bulge portion 41 of lconditioning means 36 flattens the skin in advance of cutter head 15 and combs hair bristles through guide slots 42 directly into the aligned hair reception slots 32 of the adjacent outer cutter 21.
  • Top surface 38 of frame 37 maintains the skin flat as the hair bristles pass through guide slots 42 and as the attened skin reaches cutter head 15 leading edge 51 of outer cutter 21 engages the skin and maintains the skin at as the hair enters the hair reception slots 32.
  • the position of frame 37 closely adjacent sidewall 24, of outer cutter 21 prevents the skin from bulging and entering slots 32 in the area designated x in FIG. 4 between conditioning means 36 and cutter head 15.
  • leading edge 51 of outer cutter 21 above surface 38 ⁇ of frame 3'7 provides for a closer shaving operation in that leading edge 51 not only maintains the skin flat but also picks up the hair bristles as they pass from guide slots 42 at a slight angular position whereby the hair is effectively cut closer to the skin by inner cutter 25.
  • FIGS. 5 to 7 a modification of the present invention and illustrates another form of a skin and hair conditioning means which is generally indicated by the reference numeral 56 in FIG. 5.
  • Top surface 58 is provided with a plurality of transverse guide slots 62 which extend from a bulge portion 63 provided along the leading edge of top surface 58 and .across surface 58 into the upper portion of rear leg 59.
  • Frame 57 (FIG. 6) is mounted on the rear surface of sidewall 13 of casing 1@ tov lie closely adjacent sidewall 23 of outer cutter 21 of cutter head unit 20. To this end a pair of elongated slots 64 are provided in spaced depending portions 65 of front leg 60 of frame 57 and which slots 64 are tted over spaced pins 66 on sidewall 13 to secure frame 57 to casing 10. In accordance with the latter arrangement frame 57 is mounted for lateral movement on pins 66 relative to sidewall 13 whereby frame 57 may be readily adjusted to align guide slots 62 with hair reception slots 42 in outer cutter 21.
  • Frame member 57 (as seen in FIG, 5) is tensioned on sidewall 13 in the direction of cutter head 2t) whereby in mounted position on casing 10 the spaced upper corners of rear leg 59 (as shown with respect to one corner thereof in FIG. 6) lie against abutments 68 on endwalls 12 of casing 10 to space frame 57 the selected distance x from leading edge 51 of outer cutter 21.
  • the novel conditioning means has many advantages in use.
  • One advantage among others is that economical and effective means are provided for reducing irritations normally encountered in the use of electric dry shavers and which means is effective to prevent skin from contacting the movable cutter of the cutter head.
  • a still further advantage is that the portions of the stationary cutter which contact the inner cutter may be made to thinner dimensions to allow for a close shaving operation without irritating the skin of a user since the skin is prevented from entering the hair reception slots by the conditioning means. Further, the latter portions may be made thinner without' changing the dimensions of the conditioning means thereby providing a savings in manufacturing procedures.
  • the novel conditioning means if desired, may be readily mounted on an adjusting mechanism of the type shown, for example, in U.S. Patent No. 3,148,447 entitled Comb Roller Adjustment Mechanism for Electric Dry Shaver whereby the conditioning means may be raised or lowered relative to the side cutting edge of the cutter head in accordance with the needs of the user for effecting various hair trimming operations.
  • Hair ⁇ conditioning means adapted for attachment to an electric dry shaver provided with a cutter head having a skin engaging cutter member formed with -a plurality of hair reception slots, said hair conditioning means comprising, ⁇
  • said surface portion of said frame member adapted to engage .and maintain flat the skin in advance of the cutter head as hair to be cut is guided through said guide slots into the hair reception slots of the cutter member.
  • said outer cutter comprising an elongated inverted U-shaped ⁇ member having a flat skin engaging bight portion and a pair of spaced sidewalls depending from the longitudinal side edges of the bight portion,
  • said outer cutter having a plurality of transversely extending hair reception slots formed in said bight Iportion and extending into the upper edge of at least one of said sidewalls,
  • hair conditioning means associated with said cutter head and including an elongated combing member having a substantially iiat surface portion with a plurality of transverse guide slots provided therein at intervals corresponding to the intervals of said hair reception slots, and
  • ⁇ (g) Said mounting means adapted to mount said at surface portion of the Ombing member beneath the surface of said bight portion, said at surface portion adapted to atten the skin in advance of the cutter head and simultaneously guide the hair to be cut through the guide slots and into the corresponding hair reception slots in the said one sidewall of the outer cutter.
  • said mounting means includes a portion of said combing member depending therefrom for engagement with said casing, and means for attaching said comb member portion on said casing for lateral movement relative to said outer cutter whereby said combing member is positionable laterally on said casing to align said guide slots with said Ihair reception slots.
  • said mounting means for said combing member include an elongated support member having a rst portion mounted on said casing and having a second portion supporting and positioning said combing member, and said second p0rtion projecting away from said first portion to lie adja- -cent the sidewall of said outer cutter.
  • Hair conditioning means for an electric dry shaver having a cutter head provided with .a skin engaging surface formed with a plurality of transversely extending hair reception slots, said conditioning means comprising,
  • said frame member further including a resilient leg extending from said at surface portion
  • said positioning means including means for affixing said resilient leg to the shaver to mount said frame, said ilat surface portion is positioned adjacent to and beneath the skin engaging surface of the cutter head with said guide slots aligned with the hair reception slots of the cutter head, and
  • said flat surface portion of said frame member ⁇ adapted to atten the skin in advance of the cutter head and maintain the skin in flattened condition as hair to be cut passes through said aligned slots.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US445987A 1965-04-06 1965-04-06 Hair and skin condition means Expired - Lifetime US3290775A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US445987A US3290775A (en) 1965-04-06 1965-04-06 Hair and skin condition means
GB13060/66A GB1124394A (en) 1965-04-06 1966-03-24 Electric dry shaver
AT303166A AT270442B (de) 1965-04-06 1966-03-30 Elektrisches Trockenrasiergerät
CH470666A CH452390A (de) 1965-04-06 1966-03-31 Elektrisches Trockenrasiergerät
DE19661553802 DE1553802A1 (de) 1965-04-06 1966-04-01 Elektrisches Trockenrasiergeraet
DK175366AA DK123636B (da) 1965-04-06 1966-04-04 Elektrisk tørbarbermaskine.
SE4631/66A SE309548B (ja) 1965-04-06 1966-04-05
NO162467A NO116453B (ja) 1965-04-06 1966-04-05
NL6604545A NL6604545A (ja) 1965-04-06 1966-04-05
BE679054D BE679054A (ja) 1965-04-06 1966-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US445987A US3290775A (en) 1965-04-06 1965-04-06 Hair and skin condition means

Publications (1)

Publication Number Publication Date
US3290775A true US3290775A (en) 1966-12-13

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ID=23770914

Family Applications (1)

Application Number Title Priority Date Filing Date
US445987A Expired - Lifetime US3290775A (en) 1965-04-06 1965-04-06 Hair and skin condition means

Country Status (10)

Country Link
US (1) US3290775A (ja)
AT (1) AT270442B (ja)
BE (1) BE679054A (ja)
CH (1) CH452390A (ja)
DE (1) DE1553802A1 (ja)
DK (1) DK123636B (ja)
GB (1) GB1124394A (ja)
NL (1) NL6604545A (ja)
NO (1) NO116453B (ja)
SE (1) SE309548B (ja)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644991A (en) * 1969-02-03 1972-02-29 Paul Kobler Shearhead assembly for mechanical shaver
US3673684A (en) * 1971-08-23 1972-07-04 Frank F Muntz Shaver with improved hair setup
US3834017A (en) * 1972-09-05 1974-09-10 Sperry Rand Corp A dry shaver with hair guiding and skin stretching means
US3983626A (en) * 1974-01-14 1976-10-05 Sunbeam Corporation Electric dry shaver
US20060225290A1 (en) * 2003-09-25 2006-10-12 Raoul Bader Shear system for an electric hair removing apparatus
US20090056138A1 (en) * 2007-08-31 2009-03-05 Stephens Dan H Method and apparatus for shaving
WO2014103207A1 (ja) * 2012-12-27 2014-07-03 パナソニック 株式会社 スリット刃ブロックおよびスリット刃ブロックを有する電気かみそり
EP2939804A4 (en) * 2012-12-27 2015-12-16 Panasonic Ip Man Co Ltd SLOTTED BLADE BLOCK AND ELECTRIC SHAVER
US20160250760A1 (en) * 2013-11-22 2016-09-01 Koninklijke Philips N.V. Hair cutting appliance, receptacle and connector plug
JP2017144256A (ja) * 2017-04-10 2017-08-24 パナソニックＩｐマネジメント株式会社 スリット刃ブロック、および、これを備える電気かみそり
US20220314474A1 (en) * 2021-03-30 2022-10-06 Panasonic Intellectual Property Management Co., Ltd. Blade unit and electric razor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828786C1 (ja) * 1988-08-25 1989-10-12 Fuerstliche Brauerei Thurn Und Taxis Regensburg Gmbh, 8400 Regensburg, De
DE102009031626A1 (de) * 2009-07-03 2011-01-05 Braun Gmbh Schereinheit für einen Trockenrasierer mit Hautprotektoren

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049574A (en) * 1935-05-25 1936-08-04 Stein Irving Clipping device
US2143896A (en) * 1937-12-01 1939-01-17 Barney R Nyhagen Dry shaver
US2215650A (en) * 1936-07-14 1940-09-24 Barney R Nyhagen Motor driven dry shaver
US2238886A (en) * 1937-11-27 1941-04-22 Bernard F Connolly Guard for power driven razors
US2991554A (en) * 1959-01-05 1961-07-11 Sperry Rand Corp Shaver with adjustable rollers
US3107423A (en) * 1959-03-27 1963-10-22 Orville S Caesar Electric shavers
US3191296A (en) * 1963-01-14 1965-06-29 Sperry Rand Corp Cutter head attachment means

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049574A (en) * 1935-05-25 1936-08-04 Stein Irving Clipping device
US2215650A (en) * 1936-07-14 1940-09-24 Barney R Nyhagen Motor driven dry shaver
US2238886A (en) * 1937-11-27 1941-04-22 Bernard F Connolly Guard for power driven razors
US2143896A (en) * 1937-12-01 1939-01-17 Barney R Nyhagen Dry shaver
US2991554A (en) * 1959-01-05 1961-07-11 Sperry Rand Corp Shaver with adjustable rollers
US3107423A (en) * 1959-03-27 1963-10-22 Orville S Caesar Electric shavers
US3191296A (en) * 1963-01-14 1965-06-29 Sperry Rand Corp Cutter head attachment means

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644991A (en) * 1969-02-03 1972-02-29 Paul Kobler Shearhead assembly for mechanical shaver
US3673684A (en) * 1971-08-23 1972-07-04 Frank F Muntz Shaver with improved hair setup
US3834017A (en) * 1972-09-05 1974-09-10 Sperry Rand Corp A dry shaver with hair guiding and skin stretching means
US3983626A (en) * 1974-01-14 1976-10-05 Sunbeam Corporation Electric dry shaver
US20060225290A1 (en) * 2003-09-25 2006-10-12 Raoul Bader Shear system for an electric hair removing apparatus
US7415768B2 (en) * 2003-09-25 2008-08-26 Braum Gmbh Shear system for an electric hair removing apparatus
US20090056138A1 (en) * 2007-08-31 2009-03-05 Stephens Dan H Method and apparatus for shaving
JP2014124518A (ja) * 2012-12-27 2014-07-07 Panasonic Corp スリット刃ブロックおよびスリット刃ブロックを有する電気かみそり
WO2014103207A1 (ja) * 2012-12-27 2014-07-03 パナソニック 株式会社 スリット刃ブロックおよびスリット刃ブロックを有する電気かみそり
EP2939804A4 (en) * 2012-12-27 2015-12-16 Panasonic Ip Man Co Ltd SLOTTED BLADE BLOCK AND ELECTRIC SHAVER
US9962842B2 (en) 2012-12-27 2018-05-08 Panasonic Intellectual Property Management Co., Ltd. Slit blade block and electric razor having slit blade block
US10322516B2 (en) 2012-12-27 2019-06-18 Panasonic Intellectual Property Management Co., Ltd. Slit blade block and electric razor
US20160250760A1 (en) * 2013-11-22 2016-09-01 Koninklijke Philips N.V. Hair cutting appliance, receptacle and connector plug
US9731425B2 (en) * 2013-11-22 2017-08-15 Koninklijke Philips N.V. Hair cutting appliance, receptacle and connector plug
US20170341246A1 (en) * 2013-11-22 2017-11-30 Koninklijke Philips N.V. Hair cutting appliance, receptacle and connector plug
US10226873B2 (en) * 2013-11-22 2019-03-12 Koninklijke Philips N.V. Hair cutting appliance, receptacle and connector plug
JP2017144256A (ja) * 2017-04-10 2017-08-24 パナソニックＩｐマネジメント株式会社 スリット刃ブロック、および、これを備える電気かみそり
US20220314474A1 (en) * 2021-03-30 2022-10-06 Panasonic Intellectual Property Management Co., Ltd. Blade unit and electric razor

Also Published As

Publication number Publication date
GB1124394A (en) 1968-08-21
BE679054A (ja) 1966-09-16
CH452390A (de) 1968-05-31
DK123636B (da) 1972-07-17
NL6604545A (ja) 1966-10-07
SE309548B (ja) 1969-03-24
DE1553802A1 (de) 1970-10-29
AT270442B (de) 1969-04-25
NO116453B (ja) 1969-03-24

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